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Behringer SU9920

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Overview

SONIC ULTRAMIZER SU9920 Ultimate Stereo Sound Enhancement Processor

Behringer SU9920 (ZB381)

Stereo sound enhancement processor which dramatically improves your sound by adding clarity, dimension and depth. Ideal for professional and home recording studios, PA and nightclub installations, DJ systems, installation into churches and houses of worship, guitar, bass and keyboard rack applications, broadcasting and webcasting and 5.1 and Hi-Fi setups. Features include dedicated low contour and process controls per channels, accurate 5 segment LED level meters and servo-balanced inputs and outputs with 6.35mm TRS and gold plated XLR connectors.

Behringer Sonic Ultramizer SU9920 – Technical Specifications & Setup Guide

Power Supply & Consumption

Power Supply: 100–240 V AC, 50/60 Hz (internal switch-mode power supply)
Power Consumption: 15 W
Power Connection: Standard IEC C14 power inlet with physical power switch on rear panel

Audio Performance

Frequency Response: 20 Hz – 20,000 Hz (±3 dB)
S/N Ratio: >95 dB, unweighted (20 Hz – 20 kHz)
THD+N: 0.008% typ. @ +4 dBu, 1 kHz
Processing Principle: Dynamic phase correction and high-frequency harmonic enhancement (subtle loudness/clarity optimization)

Connectivity & Signal Routing

Audio Channels: 2 independent channels (usable as Dual Mono or Stereo pair)
Bypass: Hard-bypass switch per channel (relay-controlled signal pass-through)

Controls & Indicators

Control Elements:
- Front Panel: Process control (enhancement frequency adjustment), Low Contour control (bass phase/boost adjustment), Channel Bypass switch per channel, Power switch
Indicators: Dual 5-segment LED signal level meters per channel, Channel Active/Bypass status LEDs, Power LED

Inputs & Outputs

Inputs:
- Line Inputs: 2 x XLR (balanced) and 2 x 6.35 mm (1/4") TRS jacks (balanced)
Outputs:
- Line Outputs: 2 x XLR (balanced) and 2 x 6.35 mm (1/4") TRS jacks (balanced)